Internal-combustion engine.



R. T. GOLQUHOUM iNTERNAL COMBUSTION ENGINE APPLICATION FILED OCT-13. 191B.

INVENTOR Ba 22 0iiqm%@um glue, and

from the radiator, preferably by socketing KT gSATS @FFT Ti 4 'RQBEBTT. COLQUHOUN, 0F VANCOUVER, BRITISH COLUMBIA, CANADA;

IlTTEBNAL COTIIIBUSTION ENGINE.

- mamas.

following is a specification.

This invention relates to a means for economizing the gaseous fuel of an internal combustion engine by delivering into the intake manifold to mix with the gas as delivered from the carbureter a proportion of heated aqueous vapor mixed with a proportion of heated air.

The means by which this is accomplished .is' particularly described in the following specification, reference being made to the drawings by hich it is accompan1ed, 1n which:

Figure 1 is a side elevation of the intake side of the engine showing the application of the device.

Fig. 2 is an enlarged detail of the stop cock through which the vapor and air are delivered to the intake manifold of the en- Fig. 3 is a cross section of the same on the .line 3-3 in Fig. 2.

In these drawings 2 represents the filling aperture of the radiator and 3 the overflow pipe therefrom; 4 is the exhaust manifold of the engine and 5 the intake manifold. At a position 6 on the radiator overflow pipe 3 below the top of the exhaust delivery to the radiator a pipe 7 is connected, which pipe passes upward over the neck of the exhaust delivery to the radiator and along the upper side of the exhaust manifold 4 with which it is in intimate contact, and passes down to a cock 9 secured directly in the intake manifold 5, or to an elbow secured therein.

The attachment, of the pipe 7 to the primin cock 9 may be made in any manner that will allow air to be drawn in at the connection to mix with the vapor drawn the end of the pipe 7, as shown in. Fig. 2, into a cupped end of the cock supporting it on Wings 0r feathers 11, seas to leave interspaces' 10 through which air may pass or water drain from the bottom one.

Any water condensed in the pipe 7 or carried over from the radiator when it is exma siv y h te may b pped at th air Specification of Letters Patent.

Patented 0st. 9, 1917.

Application filed October 13, 1916. Serial ll'o. 125A51. v

inlet, that is, will drop from the underside aperture 10 instead of passing through the aperture of the priming cock into the intake manifold. I To induce a flow from the. radiator to the pipe 7 instead of upward' from the lower end of the overflow pipe a small aperture is provided at 12 in the cap of'the filling aperture of the radiator.

With this provision aqueous vapor is drawn from the radiator and delivered to the intake manifold of the engine, in a manner that will avoid drawing any water of condensation with it for the delivery pipe 7 being connected to the vertically disposed overflow pipe any water condensing in that pipe will move straight downward rather than be diverted into the pipe 7. Further, this pipe.7 is inclined upward from the overfiow pipe that any water that may co'ndense in it will drain backward to the overflow. Therefrom the pipe 7 is in close contact with the exhaust so that the vapor is highly heated before it reaches the cock 9 and in the manner of connecting the pipe 7 to the cock 9 provision is made for admission at 10 of hot air foradmixture with the vapor. The cock afiords a. means for regulating the amount of water vapor and air to the requirements of the engine, and once adjusted will not require to be interfered with, as if the engine makes a greater demand on the fuel the stronger vacuum will induce a greater flow of vapor and air in the same manner as it induces a greater flow of gas from the carbureter. Care must be taken that sufficient space be left between. the end of the pipe 7 and the aperture of the cock that any water that may condense in the pipe, while the engine is not in use. may drain freely away.

I-am aware that previous to my invention aqueous vapor has been withdrawn from the radiator and has been delivered to the intake manifoldon the engine side of the carbureter, and that such air has been heated by contact with the exhaust. I am also aware that such aqueous vapor supply has been drawn from the radiator overflow pipe but where this last'has been done the withdrawal pipe has been connected so close to I also claim advantage in the manner of mixing with the highly heated vapor an amount of hot air at the cock 9, which cock being close to the intake manifold is highly heated by such proximity, so that the air admitted is practically as hot as the vapor with which it is to be mixed and condens tion is thereby avoided.

In practical use the device isconducive to a high economy in the amount of gaseous fuel used, and being simple in construction and free from coils and easily applied, Without alteration of eXisting canbe furnished with it at trifling cost. e

aving now particularly described my invention, I hereby declare that What I claim as new and desire to be protected in by Let ters Patent, is: v

A means for supplying aqueous vapor and air to the intake manifold of an internal parts, an engine,

- air to mix with controlling the amount oi air combustion engine, said means comprising a pipe connected gine radiator at a to the overflow from the enposition nearer the upper overflow being carried incline to the exhaust oi"- the overfloxtpipe, said pipe from the at siight upward manifold of the engine and aiong that exhaust in intimate contact with it for a euiiicient distance to insure that the yapor in the pipe is heated, and means for connecting the end of this pipe to the intake manifoid oi the engine with provision for admitting small quantity of hot the vapor,

and means for and vapor de- .livered to the intake manifold In testimony whereof I affix my s1 mature.

Bonner COLQUHOUN. 

